Rotary lawn-sprinkler.



w'. E. & w. G. P. MARSH.

ROTARY LAWN SPRINKLER.

APPLICATION FILED JUNE 13. 1914.

1,1 1 W0 Patented Apr. 18;1916.

MOM

idol lino "WESTERN AUSTRALIA, AUSTRALIA, ASSIGNOIRS GI? ONE-FOURTH TOWILLIAM:

JAMES BEL-FE, OF GLARIEMDNT, AUSTRALIA, (ENE-FOURTH TO ERNEST ALFREDTENS, 0F FREEMAN-T1113, rsUSTEALIA.

ROTARY LAWN-SPRINKLER.

MWIIIN greens o.

Specification of Letters Patent.

Patented Apr. is, rote.

Application filed June 13, 1914. Serial No. 844,991.

To all whom it may concern Be it known that we, WiLLmM EDWARD MARSH andNiLrRno GEORGE PAGE Manse, both subjects of the King of Great Britain,residing at Otwry Street, Claremont, "Western Australia, Commonwealth ofAustralia, have invented certain new and. useful improvements in RotaryLawn-Sprinklers, of which the following is a specification.

Our invention relates to that class of sprinkler for-lawns and othersurfaces intended to be irrigated, which sprinklers rotate by the actionof the escaping water, and

he object of our invention is'to construct a. sprinkler which works at aminimum of pressure and friction and also throws the water over amaximum area and in auniform and evenly distributed manner, with theresult that no oiperwatering or no on derwatering exists within the areaintended to be irrigated.

In order that our invention may he clearly understood the same will. heXplained with the aid of the attached drawings wherein- Figure 1 is anelevation of ahsprinhler made according to our invention 'andshowing thehub' in section. Figs. '2 and -3 are detail views of the nipple spray,Fig. L is an elevation of the pivot pipe and Fig. 5 is a sectional planview on line of Fig. -1 showing the ports in pivot pipe.

Referring to Fig. -1- a are the radial rotary arms ofany number and areinterscrewed into the huh I), said huh having the packing rings inset asshown at c and which form a water-tight joint for the bearing sun face(Z. This hub Z) freely revolves on the end of a spindle 0 formed withthe water exit ports 7 which communicate with the interior of the armsa. Thisspindle e is suitably connected by the socket g to the watersupply pipe j, while to the outer ends of the arms by the elbows 7c areconnected the nipple sprays whose construction is hereinafter described,such arrangement permit- 7 ting any Variation of angle to be given tothe nipples in relation to the radial arms.

The hub and thereto connected sprinkler as a whole rides on the spindlee and. by reason of the upward and outflowing water, a water cushion ismaintained for the rotation of the arms, which latter ride on saidspindle in a; resilient manner with a minimum degree of friction.

By reason of the peculiar construction of the invention the hub andthereto attached arms and nipples may be easily lifted off of thespindle e and replaced on another similar spindle at another position ofthe garden or field. The nipple spray is composed of two parts one beinga short tuhe m closed at its upper end 1 and made with a water exit gapor opening 1*. On the lower portion of this tube in the sleeve 15 isloosely fitted, said sleeve having a milled rim 20, whereby it is easilyrotated to adjust it to any position onthe tube. The sleeve is made withthe notch 7 at which point the water makes exit.

What we claim as our invention and de-'- sire to secure by LettersPatent is A rotary sprinkler, comprising, in combination, radialdischarge arms, a sprayer for each arm c'omprising an externally screwthreaded tubular men'lloer having its inner end secured to the outer endof said arm and having its outer end closed, said member having asemi-circular portion cut out there from intermediate its ends, aninternally threaded sleeve of alength greater than said cut-out portionmounted on said tubular member and longitudinally adiustahle thereon,said sleeve having a. Vshaped notch in its upper edge and means on itsperiphery for rotating it, substantially as and for the purpose setforth.

In testimony whereof we have hereunto set our hands in presence of twosubscribing witnesses.

WILLIAM EDWARD MARSH. WILFRED GEORGE PAGE l lllRSH.

-V 'itnesses RICHARD SPARROW, EDWIN BUTLER.

